Home / 154,735.03-213,546.27-86,758.21

Finding the Fourth Proportional to 154,735.03, 213,546.27 and 86,758.21

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Solution

The fourth proportional to 154,735.03, 213,546.27 and 86,758.21 is: 119,733.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,735.03 : 213,546.27 = 86,758.21 : x
  2. Step 2: Convert to fraction form
    154,735.03/213,546.27 = 86,758.21/x
  3. Step 3: Cross multiply
    154,735.03x = 213,546.27 × 86,758.21
  4. Step 4: Simplify right side
    154,735.03x = 18,526,892,137.38
  5. Step 5: Solve for x
    x = 18,526,892,137.38/154,735.03
  6. Step 6: Final answer
    x = 119,733.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.